# FALL OF ROOF OR BACK
> MSHA accident `220033000041` · 10/21/2003 · Canyon Fuel Company LLC
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** Arch Resources Inc
- **Operator:** Canyon Fuel Company LLC
- **Mine:** [4201566](https://api.ai-analytics.org/mine/4201566)
## Narrative

ROOF FALL DISCOVERED BY THE WEEKLY EXAMINER. MEASURES 45' X 18' X 12'. ROOF FAILURE ABOVE THE ANCHOR ZONE OF THE BOLTS DUE TO LAMINATION SEPARATION, WATER IMPREGNATION OF THE ROOF STRATA. AREA DANGERED OFF AND BREAKER ROWS SET TO PREVENT FURTHER FALL AND PERSONNEL ENTRY. NO EFFECT ON VENTILATION OR ESCAPEWAY TRAVEL.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*